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| 1 | MIMO-OFDM system based on fractional Fourier transform and selecting algorithm for optimal order显示文摘In the rapidly time-varying channel environment,the performance of traditional MIMO-OFDM system is deteriorated due to the intercarrier interference. In this paper,a novel MIMO-OFDM system is proposed,in which the modulation and demodulation of the symbols are implemented by the fractional Fourier transform instead of traditional Fourier transform. Through selecting the optimal order of the fractional Fourier transform,the modulated signals can match the time-varying channel characteristics,which results in a mitigation of the intercarrier interference. Furthermore,an algorithm is presented for selecting the optimal order of fractional Fourier transform,and the impact of system parameters on the optimal order is analyzed. Simulation results show that the proposed system can concentrate the power of desired signal effectively and improve the performance over rapidly time-varying channels with respect to the traditional MIMO-OFDM system. | YANG Qian TAO Ran WANG Yue CHEN EnQing | 2008 | Science in China(Series F)2008，51，9： | 7 |
| 2 | Dimericbiscognienynes B and C: New diisoprenyl-cyclohexene-type meroterpenoid dimers from Biscogniauxia sp.显示文摘Dimericbiscognienynes B and C(1 and 2), two new diisoprenyl-cyclohexene-type meroterpenoid dimers,were isolated from Biscogniauxia sp. 71-10-1-1. Their structures, including the absolute configurations,were determined by spectroscopic analyses and ECD experiments. Meroterpenoids are special natural products that originate from mixed terpenoid-nonterpenoid pathway. As a member of meroterpenoid family, diisoprenyl-cyclohexene/ane-type meroterpenoids composed of two isoprenyl chains(C5 unit)and a cyclohexene/ane moiety(C6 unit), featuring diverse skeleton structures with wide range of bioactivities. In these reported diisoprenyl-cyclohexene/ane-type meroterpenoids, only three dimers were identified. The discovery of the two new dimers added members of this rare class of meroterpenoids. | Huan Zhao Meizhi Wang Guodong Chen Dan Hu Enqing Li Yibo Qu Libing Zhou Liangdong Guo Xinsheng Yao Hao Gao | 2019 | Chinese Chemical Letters2019，30，1： | 3 |
| 3 | Melt-Water-Pulse (MWP) events and abrupt climate change of the last deglaciation显示文摘最后冰川的消失被巨大的冰表融化描绘,它导致平均海平面的上升类似于 120-140 m。至少三个主要 Melt-Water-Pulse (MWP ) 事件(19ka-MWP, MWP-1A 和 MWP-1B ) 为最后冰川的消失是可认识的,哪个持续从的 MWP-1A 事件类似于 14.2 到类似于 13.7 ka B.P 具有大多数意义。然而,精确预定和可争辩、争论的 MWP-1A 事件遗体的来源。融化流进诺思大西洋的最后冰川的消失的水,这长被要求了导致了减速或甚至一随后影响了全球气候的 thermohaline 发行量(THC ) 的 shutdown 变化。因此,这争论的焦点在建立在 MWP 事件和突然的气候变化之间的一种合理关系在于。这里,我们总结许多地质并且最后冰川的消失的模型结果,得出主要 MWP 事件没与严密 stadials 相应,也不总是发生在气候颠倒间隔以内的一个结论。最后冰川的消失的 MWP 事件在 THC 的紧张上有很弱的影响并且不能触发全球气候的倒塌。我们需要重新估计影响时间在全球气候系统上融化水可变性。 | HUANG EnQing TIAN Jun | 2008 | Chinese Science Bulletin2008，53，18： | 2 |
| 4 | Active contour model driven by linear speed function for local segmentationwith robust initialization and applications in MR brain images 显示文摘 | Zheng Qiang Dong Enqing Cao Zhulou | 2014 | Signal Processing2014，97，4： | 1 |
| 5 | Cetuximab in the treatment of patients with colo- rectal cancer 显示文摘 | Garrett C R Enq C | 2011 | Expert Opin Ther2011，11，7： | 1 |
| 6 | Two- dimensional homochiral manganese(II )-azido frameworks incorporatingan achiral ligand: partial spontaneous resolu- tion and weak ferromagnetism 显示文摘 | Gao Enqing Bai Shiqiang Wang Zheming | 2003 | Journal of American Chemical Society2003，125，17： | 1 |
| 7 | Antibiotic resistance of ocular surface flora with repeated use of a topical antibiotic after intravitreal injection显示文摘 | Yin VT Weisbrod DJ Enq KT | 2013 | JAMA Ophthalmol2013，131，4： | 1 |
| 8 | Feasibility of a 6-month exer- cise and recreation program to improve executive functioning and mem- ory of individuals with chronic stroke 显示文摘 | Rand D Enq JJ Liu-Ambrose T | 2010 | Neurorehabil Neural Repair2010，24，8： | 1 |
| 9 | Identification of a Mycobacterium tuberculosis gene cluster encoding the biosynthetic enzymes for assembly of the virulence conferring siderophore mycobactin显示文摘 | Luis ENQ Jason S Thomas AK | | 0，，： | 1 |
| 10 | The role of calcium, P38 MAPK in dihydroartemisinin-induced apoptosis of lung cancer PC-14 cells显示文摘 | Deguang Mu Wei Zhang Dongling Chu Tonggang Liu Yonghong Xie Enqing Fu Faguang Jin | 2008 | Cancer Chemotherapy and Pharmacology2008，，4： | 1 |
| 11 | Syntheses, structures and fluorescence of three novel 3D coordination polymers ·H2O, Cd2Na2(TMA)2(H2O)4 and 显示文摘 | Chen Jianxin Liu Shixiong Gao Enqing | 2004 | Polyhedron2004，23，11： | 1 |
| 12 | Three-dimensional iron-series coordination networks based on antiferromagnetic and ferromagnetic dinuclear motifs with mixed carboxylate and aqua bridges显示文摘 | ZHANG Xiumei JING Xuehui GAO Enqing | 2011 | Inorg Chim Acta2011，365，： | 1 |
| 13 | Recognition and diagnosis of mucopolysaccharidosis Ⅱ ( Hunter syndrome ) 显示文摘 | Martin R Beck M Enq C | 2008 | Pediatrics2008，121，2： | 1 |
| 14 | A novel multiscale edge detection approach based on nonsubsampled contourlet transform and edge tracking显示文摘 | Chen Enqing Wang Jianbo Qi Lin | 2015 | Mathematical Problems in Engineering2015，2015，50： | 1 |
| 15 | Association between ad- iponectin and mediators of inflammation in obese women显示文摘 | Enqeli S Feldpauseh M Gorzelniak K | 2003 | Diabe- tes2003，52，6： | 1 |
| 16 | Lanthanide-tran- sition heterometallic extended structures with novel orthog- onal metalloligand as building block 显示文摘 | Zheng He Cheng He Gao Enqing | 2003 | Inorg Chem2003，42，7： | 1 |
| 17 | Syntheses, structures and fluorescence of three novel 3D coordination polymers · H2O, CdENa2 (TMA)2 ( H2O)4 and · 2H2O ( TMA = trimesic acid, PRZ = piperazine) 显示文摘 | Chen Jianxin Liu Shixiong Gao Enqing | 2004 | Polyhedron2004，23，11： | 1 |
| 18 | Active con- tour model driven by linear speed function for local seg- mentation with robust initialization and applications in MR brain images 显示文摘 | Zheng Qiang Dang Enqing Cao Zhulou | 2014 | Singnal Processing2014，97，4： | 1 |
| 19 | Maternal Prepregnancy Body Mass Index And Gestationat Weight Gain on Offspring Overweight in Early Infancy显示文摘 | Nan Li Enqing Liu Jia Guo | 2013 | PLoS One2013，8，10： | 1 |
| 20 | The role of calcium, P38 MAPK in dihydroartemisinin-induced apoptosis of lung cancer PC-14 cells显示文摘 | Deguang Mu Wei Zhang Dongling Chu Tonggang Liu Yonghong Xie Enqing Fu Faguang Jin | 2008 | Cancer Chemotherapy and Pharmacology2008，，4： | 1 |
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